Re: Trouble Viewing GIFs on //e

[salfter@salfter.dyndns.org (Scott Alfter)]

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In article <20030816144328.06619.00000133@mb-m28.aol.com>,
Obsbedia2 <obsbedia2@aol.com> wrote:
>Next, ][GIF is run to decode the GIFS as HR or DHR files.  There's the
>pinch! Some files aren't even listed on the directory as files to choose,
>while other can be choose, but the program's dialog tells me that they
>aren't GIFs.

It's been a long time since I used IIGIF, but IIRC it doesn't handle GIF89a
at all.

Back when my IIe was all I had, I took images in whatever format (GIF or
JPEG), used the different pbmplus (now called netpbm) tools to convert to
560x192x1 GIFs, downloaded those, and displayed them.  It produced much
better results than IIGIF would've ever delivered, especially for photos. 

I thought ppmtogif had been removed from netpbm at some point due to patent
issues...maybe it was recently restored or maybe it was never removed to
begin with, but try something like this for JPEGs (assumes the image is
640x480, 800x600, or some other full-screen type):

djpeg foo.jpg | pnmscale -xsize 560 -ysize 192 | ppmtopgm | pgmtopbm -fs | ppmtogif >foo-a2.gif

Handling GIFs is similar:

giftoppm foo.gif | pnmscale -xsize 560 -ysize 192 | ppmtopgm | pgmtopbm -fs | ppmtogif >foo-a2.gif

I use netpbm under Linux and Cygwin.  I'd think it's available for Mac OS X
as well, but I haven't gone looking for it yet.

  _/_   Scott Alfter
 / v \  salfter@salfter.dyndns.org
(IIGS(  http://alfter.us            Top-posting!
 \_^_/  pkill -9 /bin/laden         >What is the most annoying thing on Usenet?

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